package beautiful.butterfly.drds.data_exchange.core;


import beautiful.butterfly.drds.data_exchange.core.job.JobContainer;
import beautiful.butterfly.drds.data_exchange.core.taskgroup.TaskGroupContainer;
import beautiful.butterfly.drds.data_exchange.core.util.ConfigParser;
import beautiful.butterfly.drds.data_exchange.core.util.ConfigurationValidate;
import beautiful.butterfly.drds.data_exchange.core.util.ExceptionTracker;
import beautiful.butterfly.drds.data_exchange.core.util.FrameworkErrorCode;
import beautiful.butterfly.drds.data_exchange.core.util.container.Constants;
import common.element.column_cast.ColumnCast;
import common.exception.DataExchangeException;
import common.spi.ErrorCode;
import common.statistics.JvmInfo;
import common.statistics.PerfTrace;
import common.util.Configuration;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.cli.BasicParser;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.Options;
import org.apache.commons.lang3.StringUtils;

import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * Engine是DataX入口类，该类负责初始化Job或者Task的运行容器，并运行插件的Job或者Task逻辑
 */
@Slf4j
public class Engine
{


    private static String runtimeModeString;

    // 注意屏蔽敏感信息
    public static String filterJobConfiguration(final Configuration configuration)
    {
        Configuration jobConfWithSetting = configuration.getConfigureDataMap("job").clone();

        Configuration jobContent = jobConfWithSetting.getConfigureDataMap("content");

        filterSensitiveConfiguration(jobContent);

        jobConfWithSetting.set("content", jobContent);

        return jobConfWithSetting.beautify();
    }

    public static Configuration filterSensitiveConfiguration(Configuration configuration)
    {
        Set<String> keys = configuration.getKeys();
        for (final String key : keys)
        {
            boolean isSensitive = StringUtils.endsWithIgnoreCase(key, "password")
                    || StringUtils.endsWithIgnoreCase(key, "accessKey");
            if (isSensitive && configuration.get(key) instanceof String)
            {
                configuration.set(key, configuration.getString(key).replaceAll(".", "*"));
            }
        }
        return configuration;
    }

    public static void entry(final String[] args) throws Throwable
    {
        Options options = new Options();
        options.addOption("job_path", true, "job config.");
        options.addOption("job_id", true, "job unique id.");
        options.addOption("runtime_mode", true, "job runtime mode.");

        BasicParser basicParser = new BasicParser();
        CommandLine commandLine = basicParser.parse(options, args);

        String jobPath = commandLine.getOptionValue("job_path");
        // 如果用户没有明确指定jobid, 则 datax.py 会指定 jobid 默认值为-1
        String jobIdString = commandLine.getOptionValue("job_id");
        runtimeModeString = commandLine.getOptionValue("runtime_mode");

        Configuration configuration = ConfigParser.parse(jobPath);

        long jobId;
        if (!"-1".equalsIgnoreCase(jobIdString))
        {
            jobId = Long.parseLong(jobIdString);
        } else
        {
            // only for dsc & ds & datax 3 update
            String dscJobUrlPatternString = "/instance/(\\d{1,})/config.xml";
            String dsJobUrlPatternString = "/inner/job/(\\d{1,})/config";
            String dsTaskGroupUrlPatternString = "/inner/job/(\\d{1,})/taskGroup/";
            List<String> patternStringList = Arrays.asList(dscJobUrlPatternString,
                    dsJobUrlPatternString, dsTaskGroupUrlPatternString);
            jobId = parseJobIdFromUrl(patternStringList, jobPath);
        }

        boolean isStandAloneMode = "standalone".equalsIgnoreCase(runtimeModeString);
        if (!isStandAloneMode && jobId == -1)
        {
            // 如果不是 standalone 模式，那么 jobId 一定不能为-1
            throw DataExchangeException.asDataExchangeException(FrameworkErrorCode.CONFIG_ERROR, "非 standalone 模式必须在 URL 中提供有效的 jobId.");
        }
        configuration.set(Constants.datax_core_container_job_id, jobId);

        //打印vmInfo
        JvmInfo jvmInfo = JvmInfo.getJvmInfo();
        if (jvmInfo != null)
        {
            log.info(jvmInfo.toString());
        }

        log.info("\n" + Engine.filterJobConfiguration(configuration) + "\n");

        log.debug(configuration.toJSON());

        ConfigurationValidate.doValidate(configuration);
        Engine engine = new Engine();
        engine.start(configuration);
    }

    /**
     * -1 表示未能解析到 jobId
     * <p>
     * only for dsc & ds & datax 3 update
     */
    private static long parseJobIdFromUrl(List<String> patternStringList, String url)
    {
        long result = -1;
        for (String patternString : patternStringList)
        {
            result = doParseJobIdFromUrl(patternString, url);
            if (result != -1)
            {
                return result;
            }
        }
        return result;
    }

    private static long doParseJobIdFromUrl(String patternString, String url)
    {
        Pattern pattern = Pattern.compile(patternString);
        Matcher matcher = pattern.matcher(url);
        if (matcher.find())
        {
            return Long.parseLong(matcher.group(1));
        }

        return -1;
    }

    public static void main(String[] args) throws Exception
    {
        int exitCode = 0;
        try
        {
            Engine.entry(args);
        } catch (Throwable e)
        {
            exitCode = 1;
            log.error("\n\n经DataX智能分析,该任务最可能的错误原因是:\n" + ExceptionTracker.trace(e));

            if (e instanceof DataExchangeException)
            {
                DataExchangeException tempException = (DataExchangeException) e;
                ErrorCode
                        errorCode = tempException.getErrorCode();
                if (errorCode instanceof FrameworkErrorCode)
                {
                    FrameworkErrorCode tempErrorCode = (FrameworkErrorCode) errorCode;
                    exitCode = tempErrorCode.toExitValue();
                }
            }

            System.exit(exitCode);
        }
        System.exit(exitCode);
    }

    /* check job model (job/task) first */
    public void start(Configuration allConf)
    {

        // 绑定column转换信息
        ColumnCast.bind(allConf);

        /**
         * 初始化PluginLoader，可以获取各种插件配置
         */
        //Loaders.bind(allConf);

        boolean isJob = !("taskGroup".equalsIgnoreCase(allConf
                .getString(Constants.datax_core_container_model)));
        //JobContainer会在schedule后再行进行设置和调整值
        int channelNumber = 0;
        AbstractContainer container;
        long instanceId;
        int taskGroupId = -1;
        if (isJob)
        {
            allConf.set(Constants.datax_core_container_job_mode, runtimeModeString);
            container = new JobContainer(allConf);
            instanceId = allConf.getLong(
                    Constants.datax_core_container_job_id, 0);

        } else
        {
            container = new TaskGroupContainer(allConf);
            instanceId = allConf.getLong(
                    Constants.datax_core_container_job_id);
            taskGroupId = allConf.getInt(
                    Constants.datax_core_container_taskgroup_id);
            channelNumber = allConf.getInt(
                    Constants.datax_core_container_taskgroup_channel);
        }

        //缺省打开perfTrace
        boolean traceEnable = allConf.getBool(Constants.datax_core_container_trace_enable, true);
        boolean perfReportEnable = allConf.getBool(Constants.datax_core_report_datax_perflog, true);

        //standlone模式的datax shell任务不进行汇报
        if (instanceId == -1)
        {
            perfReportEnable = false;
        }

        int priority = 0;
        try
        {
            priority = Integer.parseInt(System.getenv("SKYNET_PRIORITY"));
        } catch (NumberFormatException e)
        {
            log.warn("prioriy set to 0, because NumberFormatException, the value is: " + System.getProperty("PROIORY"));
        }

        Configuration jobInfoConfig = allConf.getConfigureDataMap(Constants.datax_job_jobinfo);
        //初始化PerfTrace
        PerfTrace perfTrace = PerfTrace.getInstance(isJob, instanceId, taskGroupId, priority, traceEnable);
        perfTrace.setJobInfo(jobInfoConfig, perfReportEnable, channelNumber);
        container.start();

    }

}
